Answered: A 20.0 - mL sample of 0.150 M KOH is…

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A 20.0 - mL sample of 0.150 M KOH is titrated with 0.125 M HCIO4 solution. Calculate the pH after 27.0 mL of acid

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter14: Acids And Bases

Section: Chapter Questions

Problem 178CP: What mass of NaOH(s) must be added to 1.0 L of 0.050 M NH3 to ensure that the percent ionization of...

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

A 20.0 mL sample of 0.150 M KOH is
titrated with 0.125 M HCIO4 solution.
Calculate the pH after 27.0 mL of acid
have been added.

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Step 1: Given

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Step 2: Calculate moles of hydrogen ion, and hydroxide ion

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Step 3: Calculate excess moles of hydrogen ion

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Step 4: Calculate concentration of hydrogen ion, and pH of solution

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